code: def test_001_get_invalid_session(self):
      response = self.client.get("/session/xyz")
      assert response.status_code != 200
  
file_path: MONAILabel/tests/unit/endpoints/test_session.py
imports: import os
  import time
  import unittest
  from monailabel.config import settings
  from .context import BasicEndpointTestSuite
label_desc: Use image node_id 1 for calling the EndPointSession obj's underlying member method code with example usage: obj.test_001_get_invalid_session() without return types